Experimental Investigation of Properties of Concrete with Partial Replacement of Aggregates with Industrial and Construction Waste

Natural resources are depleting worldwide while at the same time the generated wastes from the industry are increasing substantially. The sustainable development for construction involves the use of nonconventional and innovative materials, and recycling of waste materials in order to compensate the lack of natural resources and to find alternative ways conserving the environment. So, this paper presents the results of an experimental investigation carried out to evaluate the mechanical properties of concrete mixtures in which fine aggregate sand was replaced with Copper Slag CS while coarse aggregates was replaced by recycled concrete aggregate RCA from demolished structure. Both the fine and coarse aggregate were replaced with percentages 0 for the control mixture , 10 , 20 , 30 , of Copper Slag by weight. Tests were performed for properties of fresh concrete and hardened Concrete. Slump test was conducted to determine the workability of the various design concrete mix. Compressive strength and split tensile strength were determined at 7, 28 days of curing. The results indicate that workability decreases slightly with increase in Copper Slag percentage, though workability for the sample were within the prescribed limit for M25 concrete. Test results indicate significant improvement in the strength properties of plain concrete by the inclusion of CS alone while a reverse trend in observed for increasing percentage of RCA in the sample. The synergistic effect of CS and RCA on the designed sample concrete revealed that the percentage of CS is the more decisive factors than the percentage of RCA in deciding the performance of the concrete in terms of compressive and tensile strength. The outcomes of this research work showed that Copper slag and recycled concrete aggregate can be effectively used in structural concrete as a replacement of fine aggregate sand and coarse aggregate respectively. Futher, it substantiate towards sustainable construction approach because of its dual advantage of controlling menace of solid waste disposal along with its subsequent environmental pollution and increasing the cost efficiency and carbon efficiency of the product. 

BY Achal Jain | Er Nitin Thakur "Experimental Investigation of Properties of Concrete with Partial Replacement of Aggregates with Industrial and Construction Waste"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29834.pdf 

Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29834/experimental-investigation-of-properties-of-concrete-with-partial-replacement-of-aggregates-with-industrial-and-construction-waste/achal-jain

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Brush Less Dc Motor

Permanent Magnet PM Brushless DC BLDC motors have been widely used in industrial drives due to their high performance, high torque density and low acoustic noise. Cogging torque in these motors is caused by the reluctance change between the stator teeth and the rotor magnets. The cogging torque invariably affects the performance of the motor by giving rise to torque ripples, vibration, speed fluctuations and acoustic noise. The main objective of the research work is to explore the design methods to reduce the cogging torque in BLDC motors. This thesis consists of two parts the first part dealing with the reshaping of Rotor Permanent Magnets and the second with the Stator Slot Modifications both for reducing the cogging torque in BLDC motors. All th

e proposed techniques in this thesis have been designed using CAD package MagNet. The Finite Element Analysis FEA is applied to all the proposed design methods and the CAD results are compared for cogging torque reductions.

BY Sd. Salman | T. Rajesh | B. Archana "Brush Less Dc Motor"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29804.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/29804/brush-less-dc-motor/sd-salman

international journals in engineering, engineering journal, conference issue publication

Research into Properties of Spot Welded Steel Sheets

The contribution deals with parameter optimalization of resistance spot welding for hot dip zinc coated steel sheets. The mechanical properties and metallographic observation of welded joints on galvanized steel sheets were performed. Uncoated sheets from the same material were used for comparison of particular properties. The results showed that welding parameter opt

imalization is very important for welding of galvanized steel sheets. 

BY LuboÅ¡ KaÅ¡c¡k | Denis Cmorej "Research into Properties of Spot Welded Steel Sheets" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29773.pdf 

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29773/research-into-properties-of-spot-welded-steel-sheets/lubo%C5%A1-ka%C5%A1c%C3%A1k

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Comparative Study on Analysis and Design of Skew Bridge by STAAD and ETABS Software using Finite Element Method

Skew bridges are required to cross the drains at any angle other than normal. These can be helpful in making straight crossing or utilizing the available land where normal crossing are either impossible or not suitable. The slab bridges are uneconomical for large spans due to excessive design thickness but good for small spans due to its easy execution.Bending Moment result comparison between both software i.e. Staad Pro and Etabs show little variation For Span 15 m on Staad Pro and Etabs is 74.518 kn sq.mm and 68.40kn sq.mm respectively, For Span 17 m on Staad Pro and Etabs is 71.47 kn sq.mm and66.70 kn sq.mm respectively and For Span 19 m on Staa

d Pro and Etabs is 79.73 kn sq.mm and71.95 kn sq.mm respectively. At constant skew angle for varying span length the torsional bending moment gradually shift toward obtuse acute angle. In both the software i.e. STAAD and ETAB the ETAB give more appropriate result in compare to STAAD.

BY Patil Akshay Mukund | Nitesh Kushwaha "Comparative Study on Analysis & Design of Skew Bridge by STAAD and ETABS Software using Finite Element Method"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29788.pdf 

Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29788/comparative-study-on-analysis-and-design-of-skew-bridge-by-staad-and-etabs-software-using-finite-element-method/patil-akshay-mukund

international journals in engineering, engineering journal, conference issue publication

Optimization Parameters for MIG Welding of 316 L Austenite Steel by Taguchi Method

Unique Now days the extent of circular segment welding is expanding in the different designing fields, for example, aviation, atomic and submerged enterprises. Additionally, the customary utilizations of curve welding have expanded their requests in quality, cost, precision and volume. Along these lines, the master cess parameters are required to improve the current procedure of welding. Metal Inert Gas MIG welding otherwise called Gas Metal Arc Welding GMAW , is a procedure that uses a ceaselessly sustaining of strong anode and electrical capacity to soften the terminal and store this liquid material in the weld joint. The h

ardware consequently directs the electrical qualities of circular segment. MIG welding process is utilized for joining of comparative and different metals. The fundamental point of our task is to consider the MIG welding parameters improvement with the assistance of TAGUCHI. In this examination, treated steel 136 are joined by utilizing MIG welding. Two parameters of MIG welding, for example, Current, Voltage are taken as info parameters. By changing these parameters, the elasticity will be checked. The rigidity was checked with the assistance of UTM. MINITAB programming is utilized to get the enhancement results. The examination of sign to commotion proportion will be finished with the assistance of MINITAB programming for higher the better attributes. At last, the affirmation tests will be performed to contrast the anticipated qualities and the exploratory qualities which will affirm its viability in the investigation of rigidity of the joint and then the outcome and end will be drawn.

BY Suhas Baliram Dahitankar | Prof. Sayyad Shafik "Optimization Parameters for MIG Welding of 316 L Austenite Steel by Taguchi Method"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29785.pdf 

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29785/optimization-parameters-for-mig-welding-of-316-l-austenite-steel-by-taguchi-method/suhas-baliram-dahitankar

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Analysis of the Characteristic behaviour of Concrete with Rice Husk Ash and Sugarcane Bagasse Ash

In the last decades, the use of residue in construction industry, especially as additives in concrete, has been subject of many researches as it may lead several improvements in the concrete properties, besides reducing the environmental pollution. The world rice harvest is estimated in 600 million tons per year. In terms of production sugarcane tops the crop ranking order. In India alone there grows 352 million tons of sugarcane and processed by 138 sugar mills. Considering that 22 of the grain is husk. So both the rice husk and sugarcane bagasse ash are complete waste and can be used as substitutes in concrete. The RHA and Sugarcane bagasse ash were trialed

to replace concrete with various ratios of RHA 0 , 10 , 20 , 30 and 40 with fine aggregates and SCBA 0 , 5 , 10 , 15 and 20 with cement. The water cement ratio in all the mixes was maintained at 0.55. From the experimentations it was inferred the modified specimen resulted in number of improvement of properties of cement. The observed increase in compressive strength of concrete is maximum, when the conventional concrete is modified with 15 SCBA and 30 RHA. With this percentage modification there seen increase in both 28 as well as 7 days compressive strength. There observed considerable reduction in slump value yet keeping the mix workable or in other words we can say that modification of concrete by SCBA and RHA do not adversely affect the workability. The 28 day split tensile strength test revealed that the inferences of compressive strength test and split tensile strength were somehow similar to one another. More the application of SCBA and RHA, lesser are their disposal problems and thus results in reduction of carbon credits by these waste products. This research promoted an ecological way of waste management and sustainable construction. 

BY Sultan Singh | Er. Sunil Kumar | Er. Vikram "Analysis of the Characteristic behaviour of Concrete with Rice Husk Ash and Sugarcane Bagasse Ash"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29774.pdf 

Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29774/analysis-of-the-characteristic-behaviour-of-concrete-with-rice-husk-ash-and-sugarcane-bagasse-ash/sultan-singh

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A Review Paper on Fin Efficiency Enhancement

From the previous couple of decades no of endeavours have made by scientists to upgrade the rate of heat transfer with the utilization of fins by differing number of parameters. The parameters like fin geometries, fin spacing, temperature dissemination, height, length have been explored in this paper. The paper gives some short audits about the methods for improving the rate of heat transfer by use of fins. Principle thought process of the paper is to give some concise information about the efficiency enhancements that can be made in fins to improve heat transfer rate. 

BY Naveen Kumar | Udit Singhal "A Review Paper on Fin Efficiency Enhancement"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd29543.pdf 

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29543/a-review-paper-on-fin-efficiency-enhancement/naveen-kumar

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